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226661 (2004 GC13)
Classification: Main-belt Asteroid          SPK-ID: 2226661
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1639030570543273 5.2116e-08  
a 2.260948282226959 1.7905e-08 au
q 1.89037194692823 1.151e-07 au
i 9.154754166654754 6.2905e-06 deg
node 213.1172289612678 3.6725e-05 deg
peri 22.73931477486767 4.2847e-05 deg
M 228.4552835994174 2.6648e-05 deg
tp 2459454.238130634660
(2021-Aug-27.73813063)
9.5304e-05 TDB
period 1241.750573478405
3.40
1.4751e-05
4.039e-08
d
yr
n .2899132947380602 3.4438e-09 deg/d
Q 2.631524617525687 2.084e-08 au
  Orbit Determination Parameters
   # obs. used (total)      386  
   data-arc span      8760 days (23.98 yr)  
   first obs. used      1995-11-14  
   last obs. used      2019-11-08  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .60293  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-04 17:28:06  

Additional Information
 Earth MOID = .883083 au 
 Jupiter MOID = 2.36624 au 
 T_jup = 3.585 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457156.5 (2015-May-14.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1638845423476311 5.2062e-08  
q 1.890318185370619 1.1497e-07 au
tp 2456971.318175684664
(2014-Nov-09.81817568)
7.9701e-05 TDB
node 213.1279429519703 3.6722e-05 deg
peri 22.79972824097252 4.286e-05 deg
i 9.154799314789575 6.292e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      386  
   data-arc span      8760 days (23.98 yr)  
   first obs. used      1995-11-14  
   last obs. used      2019-11-08  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .60293  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-04 17:28:06  

Additional Information
 Jupiter MOID = 2.36624 au 
 T_jup = 3.585 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.710426848569212E-15 -5.938142388870621E-15 -2.661128245050751E-13 1.573151589654286E-14 -1.439206815279346E-13 2.202757510730943E-15
q -5.938142388870621E-15 1.321895688849006E-14 1.073659195198325E-12 -3.865203077630475E-14 4.515896234942244E-13 -4.455940385396606E-15
tp -2.661128245050751E-13 1.073659195198325E-12 6.352265322477773E-9 -2.77354471370325E-11 1.790236550941379E-9 -3.981026266300238E-12
node 1.573151589654286E-14 -3.865203077630475E-14 -2.77354471370325E-11 1.348469042700939E-9 -1.338437601638537E-9 -5.96007125145218E-11
peri -1.439206815279346E-13 4.515896234942244E-13 1.790236550941379E-9 -1.338437601638537E-9 1.836987263239381E-9 5.79343343223705E-11
i 2.202757510730943E-15 -4.455940385396606E-15 -3.981026266300238E-12 -5.96007125145218E-11 5.79343343223705E-11 3.958925154959485E-11

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.6   n/a MPO454628  
diameter diameter 3.784 km 0.186 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.037   0.007 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

226661 (2004 GC13)          Discovered 2004-Apr-12 by CSS at Catalina
Reference: 20091202/Numbers.arcLast Updated: 2009-12-04

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